[Beano]

I have a strange query. I don't think it's anything to worry about but:-
One of our chickens has always, for years, pecked and eaten, I think, wood. She has pecked, almost right through, one fence planc. Now she has started on a perch in the run. I think the other one is joining in. Does anyone have any ideas as to why? Have you come across this before?  Like I mentioned, she's been doing this for years with no adverse effects but it would be good to know why.

[New shoot]

Some hens do peck wood and other inedible objects.  If she is happy and healthy, I wouldn't worry too much.

It is the chicken mentality - if it moves, peck it. 
If it doesn't move, peck it - it might move. 
If it still doesn't move, peck it some more - just because it doesn't move, it might still be worth pecking   

Even with cabbage or other greens to amuse them, some of mine have been wannabe woodpeckers over the years 

[Beano]

Ha, New shoot, that's funny and thank you for your answer. So our Dot is just a little dotty then.😊